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CUI

STIG Rule - V-206376

V-206376

SV-206376r960963_rule

CAT II

The web server must not be a proxy server.

From: Web Server Security Requirements Guide (V4R4)

Description

<VulnDiscussion>A web server should be primarily a web server or a proxy server but not both, for the same reasons that other multi-use servers are not recommended. Scanning for web servers that will also proxy requests into an otherwise protected network is a very common attack making the attack anonymous.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>

Check Procedure

Review the web server documentation and deployed configuration to determine if the web server is also a proxy server. If the web server is also acting as a proxy server, this is a finding.

Fix Text

Uninstall any proxy services, modules, and libraries that are used by the web server to act as a proxy server. Verify all configuration changes are made to assure the web server is no longer acting as a proxy server in any manner.

CCI Reference

CCI-000381
Created
2026-04-07 20:08:40
Last Updated
2026-04-07 20:08:40
CUI